Mohr hardness is greater than 8, pencil hardness is greater than 9h, film hardness is close to sapphire glass, film transmittance is greater than 99.4%, steel wool wear-resistant (@ 1kg 10mm × 10mm & gt; 8000 times) without scratch, rubber + alcohol wear-resistant & gt; 5000 times without damage, can be effectively combined with AF, and all indicators reach the industry leading level.